Arsene Wenger confirmed Olivier Giroud could be facing a long spell out injured but refused to confirm the striker had broken his foot until he has seen another specialist on Wednesday.

The Arsenal boss was determined to focus on Wednesday night’s Champions League play-off against Besiktas.

The first-leg was goalless in Istanbul and Giroud’s absence from the second leg at the Emirates will hit Wenger, who is already without captain Mikel Arteta, injured, and Aaron Ramsey, suspended after his red card in Istanbul.

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All smiles: Wenger (left) and Alex Oxlade-Chamberlain laugh during their press conference on Tuesday

Sprint: Oxlade-Chamberlain is put through his paces as Arsenal train ahead of the Besiktas match

Europe: Lukas Podolski (left) makes a point of his Champions League bib as Jack Wilshere stretches

'He will not play,' said Wenger, when asked about Giroud’s injury.

'For the rest, he will see a specialist in England tomorrow (Wednesday) and after we will make an announcement of how long he will be out.

'We prepare for the game. It can be a long-term injury. We will see tomorrow (Wednesday). I don’t know if it’s broken. It’s sad for us but we are focused on the game.

'It has happened to 99% of the big clubs in Europe. We are highly determined. The task is clear and we know we can do it. So let’s do it.'

Crocked: Olivier Giroud (right) went down with an ankle injury against Everton on Saturday

Captain: Per Mertesacker (left) missed the away leg as he was unfit following his late return to training

When quizzed on whether Giroud's injury would force Arsenal into the transfer market, Wenger refused to say anything 'categorically'.

He added: 'We are 24 hours in front of a big game and our focus is more on that than transfers.

'I learned one thing in this job, you say nothing categorically.

'It’s a very important game. We want to play on the top level. It’s more important on the sporting side than the financial side.

Stalemate: Arsenal were held to a 0-0 draw against the Turkish side in the first leg last week

Inspiration: Arsenal will need Mesut Ozil to put in a strong performance to overcome a determined Besiktas

The French boss believes his side a fully prepared to put Besiktas to the sword at the Emirates on Wednesday as he insists their experience in Europe's elite competition with help the Gunners progress.

Wenger added: 'Experience plays a big part. We have big experience in the Champions League of playing high pressure games and we can use that.

'This group is strong and mentally prepared and ready for the fight. What’s most important is that we go out and play at our best.

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Instructions: Wenger talks to his squad during their training session at London Colney